142 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
16. Ambloplites rupestris (Rafinesque). P. 
Abundant in the little mill-pond on Little Peak Creek. 
17. Htheostoma blennioides (Rafinesque). P., R. 
Not rare. 
18. Etheostoma flabellare (Rafinesque). P., R. 
Abundant in clear, shallow waters in Little Peak Creek. 
19. Cottus bairdi Girard. R. 
Not rare. 
L.— THE HOUSTON RIVER. 
The Holston is one of the three main tributaries of the Tennessee River. Of these 
three it is the largest and the one most nearly in line with the general course of the 
river. The Holston is formed by the uuion of three streams nearly equal in size and 
similar in physical respects which flow in parallel valleys separated by low mountains 
or hills. These are the South Fork, the Middle Fork, and the North Fork. All these 
streams were carefully seined, and it is believed that the present collection includes 
very nearly all the fishes occurring in the upper tributaries of the Tennessee. Of the 
large catfish, buffalo-fishes, drums, etc., found in the lower course of the river, no 
specimens were obtained. 
1. South ForJc of the Holston River at Holstein Mills, Va. August 7 ; temperature 
72°. Holstein Mills lies about 9 miles south of Marion, Va. The river here is very 
clear, rather cold. Its bottom is rocky and gravelly, and the waters rather swift, 
there being often an alternation of rapids and deep pools. The stream was fished 
between the dams in the village, and also below the lower dam. The latter locality is 
a most excellent one for making collections, one of the very best of all those found by 
us. Darters {E. simoterum) swarm on the bottom, and the swift waters below the dam 
are literally full of Notropis rtibricroceus and V. coccogenis, both species marked with 
brilliant red in life. Trout [Salvelinus fontinalis) are found above the dams, but the 
catfish and the black bass do not ascend so far. The California rainbow trout 
[Salmo irideus) has been introduced into this river, and a specimen was lately taken 
with the hook above Holstein Mills. Species from Holstein Mills are marked S. 
2. Middle Fork of the Holston at Marion, Va. August 7; temperature 71°. 
Seined in the town and for about half a mile above the railway station. The stream is 
similar to the preceding, and equally clear and cold. It has less volume of water, and 
the bottom is more rocky. The same species were found, and the locality is perhaps 
equally good for collections. The species obtained are marked M. 
3. Middle Forh of the Holston River near Glade Spring, Va. August 8; temper- 
ature 75°. Seined at a point about 5 miles south of the village of Glade Spring, in 
and about a ford on the Byers farm. The stream is here considerably larger than at 
Marion. The water is much warmer and with less current. It flows through pasture 
land, and the water thereby rendered somewhat gray from clay washed into the river. 
The bottom is partly rocky, partly gravelly. The locality is not a very good one for 
collecting, although one species was obtained which has not been seen elsewhere. 
Species from Glade Spring are marked G. 
4. North Forh of Holston River at Saltville, Va. August 9; temperature 75°. 
